cm.2 ĂD is the diameter of a circle of radius 6 cm and ABBC- CD. Se

1.	cm.2 ĂD is the diameter of a circle of radius 6 cm and ABBC- CD. Semi-circles are drawn with AB and BD as diametersAas shown in the figure. Find the perimeter and area of theshaded region.
Answer» Area of shaded region=Area of smaller semicircle with Diameter AB +area of semicircle with Diameter AD - area of semicircle with Diameter BD AD=6, AB=BC=CD=2cmArea=π(1/2)+π(9/2)-π(4/2)=π/2+9π/2-4π/2=3π=66/7 cm^2 Perimeter=π(1)+π(3)-π(2)=2πPerimeter of shaded region=44/7cm

cm.2 ĂD is the diameter of a circle of radius 6 cm and ABBC- CD. Semi-circles are drawn with AB and BD as diametersAas shown in the figure. Find the perimeter and area of theshaded region.

Answer»

Area of shaded region=Area of smaller semicircle with Diameter AB +area of semicircle with Diameter AD - area of semicircle with Diameter BD

AD=6, AB=BC=CD=2cmArea=π(1/2)+π(9/2)-π(4/2)=π/2+9π/2-4π/2=3π=66/7 cm^2

Perimeter=π(1)+π(3)-π(2)=2πPerimeter of shaded region=44/7cm